问题：
java编译时
错误信息：
Information:java: javacTask: 源发行版 1.8 需要目标发行版 1.8
Information:2017/1/24 11:27 - Compilation completed with 1 error and 0 warnings in 5s 873ms
Information:java: Errors occurred while compiling module 'java-lessions'
Information:javac 1.8.0_91 was used to compile java sources
Information:Module "java-lessions" was fully rebuilt due to project configuration/dependencies changes
Error:java: Compilation failed: internal java compiler error
解决
File | Settings | Build, Execution, Deployment | Compiler | Kotlin Compiler
如果还是不行
File | Settings | Build, Execution, Deployment | Compiler | Java Compiler